DAS_2024_1/dozorova_alena_lab_6/ConsoleApp1/Program.cs

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using ConsoleApp1;
using System.Data.Common;
using System.Diagnostics;
internal class Program
{
private static void Main(string[] args)
{
var value = new int[3] {100, 300, 500 };
foreach(var i in value)
{
var a = CreateMatrix(i, i);
var b = CreateMatrix(i, i);
List<long> times = new() {};
Console.WriteLine("Для пяти потоков: ");
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for (int j = 1; j <= 5; j++)
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{
var sw = new Stopwatch();
sw.Start();
Calculate(a, j);
sw.Stop();
times.Add(sw.ElapsedTicks);
}
Console.WriteLine("Количество тиков для вычисления матрицы стороной "+i+": "+string.Join("\t", times));
Console.WriteLine("Для десяти потоков: ");
for (int j = 1; j <= 10; j++)
{
var sw = new Stopwatch();
sw.Start();
Calculate(a, j);
sw.Stop();
times.Add(sw.ElapsedTicks);
}
Console.WriteLine("Количество тиков для вычисления матрицы стороной " + i + ": " + string.Join("\t", times));
}
}
private static int[,] CreateMatrix(int x, int y)
{
var rnd = new Random();
var res = new int[y, x];
for (int i = 0; i < y; i++)
{
for (int j = 0; j < x; j++)
{
res[i, j] = rnd.Next(0, 100);
}
}
return res;
}
private static double Calculate(int[,] matrix, int maxTask)
{
double res = 0;
var semaphore = new SemaphoreSlim(maxTask, maxTask);
for (var j = 0; j < matrix.GetLength(0) - 1; j++)
{
_ = Task.Run(() =>
{
try
{
semaphore.Wait();
res += (j % 2 == 1 ? 1 : -1) * matrix[1, j] *
matrix.CreateMatrixWithoutColumn(j).
CreateMatrixWithoutRow(1).CalculateDeterminant();
}
finally { semaphore.Release(); }
});
}
semaphore.Wait(maxTask);
return res;
}
}